Almost all bosses, especially Argus, are way undertuned on normal and heroic. Very disappointing. Argus, the last boss of the expansion, supposed to be the harderst, but he's such a pushover. I was expecting another KJ with 50+ or 100+ wipes on heroic, but it's completely not the case. Mythic will still be brutally hard, I hope. Here's my dodgy chart of the difficulty in Antorus: